Answer:
2, 6 are the one you should select
Explanation:
While living organisms contain a number of different elements, some elements are found in greater abundance in living organisms. These elements are oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus.
Ok, I'm not fully sure but answer B sound right, so I think it's right
Answer:
the glutamate causes an influx of ca2+ions the nerve cell akin to what occurs during depolarization.